Configuring Multi Home LAN IP Addresses

If you have computers on your LAN using different IP address ranges (for example, 172.16.2.0 or 10.0.0.0), you can add "aliases" to the LAN port, giving computers on those networks access to the Internet through the VPN firewall. This allows the VPN firewall to act as a gateway to additional logical subnets on your LAN. You can assign the VPN firewall an IP address on each additional logical subnet.

To add a secondary LAN IP address, follow these steps:

Select Network > LAN Setup from the main menu, and click the LAN Multi-homing tab. The LAN Multi-homing screen displays.

IP Address. The "alias," an additional IP address hosted by the LAN port of the VPN firewall. This address will be the gateway for computers on the secondary subnet.

Subnet Mask. The IPv4 subnet mask that defines the range of the secondary subnet.

In the Add Secondary LAN IP Address section, enter the additional IP address and subnet mask to be assigned to the LAN port of the VPN firewall.

Click Add. The new Secondary LAN IP address will appear in the Available Secondary LAN IPs table.

Note: IP addresses on these secondary subnets cannot be configured in the DHCP
server. The hosts on the secondary subnets must be manually configured with
IP addresses, gateway IP addresses, and DNS server IP addresses.

Tip: The secondary LAN IP address will be assigned to the LAN interface of the
VPN firewall and can be used as a gateway by computers on the secondary
subnet.